Noun

1. The event consisting of the start of something
2. The time at which something is supposed to begin
3. The first part or section of something
4. The place where something begins, where it springs into being
5. The act of starting something

Verb

1. Take the first step or steps in carrying out an action
2. Have a beginning, in a temporal, spatial, or evaluative sense
3. Set in motion, cause to start
4. Begin to speak or say; he began
5. Be the first item or point, constitute the beginning or start, come first in a series
6. Have a beginning, of a temporal event
7. Have a beginning characterized in some specified way
8. Begin an event that is implied and limited by the nature or inherent function of the direct object
9. Achieve or accomplish in the least degree, usually used in the negative
10. Begin to speak, understand, read, and write a language